TIME Names Facebook’s Zuckerberg Person Of Year

For connecting more than half a billion people and mapping the social relations among them; for creating a new system of exchanging information; and for changing how we all live our lives, Mark Zuckerberg is TIME’s 2010 Person of the Year.

On the afternoon of Nov. 16, 2010, Mark Zuckerberg was leading a meeting in the Aquarium, one of Facebook’s conference rooms, so named because it’s in the middle of a huge work space and has glass walls on three sides so everybody can see in. Conference rooms are a big deal at Facebook because they’re the only places anybody has any privacy at all, even the bare minimum of privacy the Aquarium gets you. Otherwise the space is open plan: no cubicles, no offices, no walls, just a rolling tundra of office furniture. Sheryl Sandberg, Facebook’s COO, who used to be Lawrence Summers’ chief of staff at the Treasury Department, doesn’t have an office. Zuckerberg, Facebook’s CEO and co-founder and presiding visionary, doesn’t have an office.